Check out example codes for "C++ and endl". It will help you in understanding the concepts better.

Code Example 1

// endl example
#include <iostream>     // std::cout, std::end
using namespace std;
int main () {

  int a=100;
  double b=3.14;

  cout << a;
  cout << endl;              // manipulator inserted alone
  cout << b << endl << a*b;  // manipulator in concatenated insertion
  endl (cout);               // endl called as a regular function

  return 0;
}

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